Up to now, we are used to machine tools that differ from conventional and traditional forms. Every new way of arranging axes or locating cutting tools and workpieces has prompted us to rethink the basics of metal cutting and discover new options to produce parts more efficiently. Vertical grinding is a testament to this. As the name implies, vertical grinding secures the workpiece to a rotating chuck in the base of the machine, similar to the positioning of the workpiece on a vertical lathe. The grinding spindle moves up and down from the top of the workpiece, from one end to the other (and possibly also). In recent years, one of the main advocates of vertical grinding is TaiyoKoki, a grinding machine manufacturer based in Nagaoka, Japan. The company is now a member of MoriSeiki and as such, it has a more active position in the North American grinding machine market. TaiyoKoki produces many types of grinding machines, but it is worth noting that many of its models are based on the principle of vertical grinding. From a structural point of view, these grinding machines are distinguished from other grinding machines in that both the grinding spindle and the workpiece are mounted vertically, rather than horizontally, in order to grind the inner diameter, outer diameter and surface of the cylindrical part. The grinding head is simultaneously controlled on the horizontal axis (the direction of the workpiece diameter) and the vertical axis (the longitudinal direction of the workpiece). These machines are good at grinding round shapes. The following are the reasons for the special value of vertical grinding: 1 less deformation, better roundness on the vertical grinding machine, the workpiece is mounted upright in the chuck. On horizontal grinders, the clamping force must ensure that the workpiece does not fall outside the chuck. A vertically clamped workpiece requires only sufficient clamping force to resist the grinding force. Gravity is good for the grinding process, not for grinding. Since only a small clamping force is required to be fixed to the vertical grinder, the workpiece may be less deformed. This reduces the chance of roundness errors. According to the manufacturer, the vertical grinder can achieve a roundness error of less than 1μ; m ​​(less than ±0.000039 inches) based on the results obtained from standard test workpieces. Once the card is finished, the vertical grinder can be used for outer diameter, inner diameter and surface grinding. Depending on the shape of the workpiece, all three tasks can be performed in one setup. When this is possible, errors due to multiple loadings are avoided. The roundness between the inner and outer diameters, as well as the perpendicularity of the inner diameter, outer diameter, and surface, can be more accurately maintained. Since the workpiece and the grinding spindle are vertical, there is actually no problem with the downturn to be solved. The machine structure is inherently rigid. The combined operation in one-step installation brings significant economic benefits. Less installations mean fewer parts, shorter preparation times, fewer machine tools, and lower labor costs. Ergonomic vertical grinding machines are easier to load and unload. Manual loading and unloading eliminates the need to support the workpiece while the chuck is being activated. The operator simply has to mount the workpiece down into the chuck. Centering the workpiece also occurs more naturally because there is no uneven gravity when the jaws are closed. Loading and unloading with a crane or robot can also be made easier because the workpieces in the chuck have the same stable positioning on the car or the transfer disk. For example, a dish-shaped part like a gear can be conveyed horizontally downward for picking up the installation. Also place it horizontally down in the chuck of the grinder. Vertical grinders are usually smaller than comparable horizontal grinders. Vertical grinders take up more space and have less floor space. This leaves room for the autoloader or robot next to the machine, making automation a more attractive option. No dust is on the horizontal grinder, and the sliding surfaces of the X and Z axes are lower than the points of the grinding action.
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